Some milestones are missing in my issues

When try to assign a milestone to my issues not all milestones show up. I cant see any difference between them. Has anybody a hint why some show up and others dont? Thanks

Welcome to the forum @humanoid! A few things that might help…

First is our milestones documentation, which can help you better understand milestones in general.

This section of the docs says " You can assign project milestones to issues or merge requests in that project only.", so I wonder if the issues that aren’t showing the milestones are in a different project?

They are in the same project but I realised that milestones consisting of only numbers like 1.0.0 can not be searched for and therefore only the first 10 or so are displayed in the search box.